www.shorelineflyingclub.com/ is a good place, so is
www.advantage-aviation.com I'm not 100% sure if they're part 141, but they're about 30 minutes south of SFO at PAO. Diamond aviation and WVFC in SQL are good too. Avoid Bel Air International- the owner is a crook. PM me if you'd like, I know some instructors down in PAO that are the best in the business.